96
97 @Test
98 public void defineHiddenClass() throws Throwable {
99 // define a hidden class
100 Lookup lookup = MethodHandles.lookup().defineHiddenClassWithClassData(T_CLASS_BYTES, classData, false, NESTMATE);
101 Class<?> c = lookup.lookupClass();
102 assertTrue(c.getNestHost() == DefineClassWithClassData.class);
103 assertTrue(c.isHiddenClass());
104 assertEquals(classData, injectedData(c));
105
106 // invoke int test(DefineClassWithClassData o)
107 int x = testInjectedClass(c);
108 assertTrue(x == privMethod());
109
110 // dynamic nestmate is not listed in the return array of getNestMembers
111 assertTrue(Stream.of(c.getNestHost().getNestMembers()).noneMatch(k -> k == c));
112 assertTrue(c.isNestmateOf(DefineClassWithClassData.class));
113 }
114
115 @Test
116 public void defineWeakClass() throws Throwable {
117 // define a weak class
118 Lookup lookup = MethodHandles.lookup().defineHiddenClassWithClassData(T_CLASS_BYTES, classData, true, WEAK);
119 Class<?> c = lookup.lookupClass();
120 assertTrue(c.getNestHost() == c);
121 assertTrue(c.isHiddenClass());
122 }
123
124 @Test(expectedExceptions = IllegalAccessException.class)
125 public void noPrivateLookupAccess() throws Throwable {
126 Lookup lookup = MethodHandles.lookup().dropLookupMode(Lookup.PRIVATE);
127 lookup.defineHiddenClassWithClassData(T2_CLASS_BYTES, classData, false, NESTMATE);
128 }
129
130 @Test
131 public void teleportToNestmate() throws Throwable {
132 Lookup lookup = MethodHandles.lookup()
133 .defineHiddenClassWithClassData(T_CLASS_BYTES, classData, false, NESTMATE);
134 Class<?> c = lookup.lookupClass();
135 assertTrue(c.getNestHost() == DefineClassWithClassData.class);
136 assertEquals(classData, injectedData(c));
137 assertTrue(c.isHiddenClass());
138
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96
97 @Test
98 public void defineHiddenClass() throws Throwable {
99 // define a hidden class
100 Lookup lookup = MethodHandles.lookup().defineHiddenClassWithClassData(T_CLASS_BYTES, classData, false, NESTMATE);
101 Class<?> c = lookup.lookupClass();
102 assertTrue(c.getNestHost() == DefineClassWithClassData.class);
103 assertTrue(c.isHiddenClass());
104 assertEquals(classData, injectedData(c));
105
106 // invoke int test(DefineClassWithClassData o)
107 int x = testInjectedClass(c);
108 assertTrue(x == privMethod());
109
110 // dynamic nestmate is not listed in the return array of getNestMembers
111 assertTrue(Stream.of(c.getNestHost().getNestMembers()).noneMatch(k -> k == c));
112 assertTrue(c.isNestmateOf(DefineClassWithClassData.class));
113 }
114
115 @Test
116 public void defineStrongClass() throws Throwable {
117 Lookup lookup = MethodHandles.lookup().defineHiddenClassWithClassData(T_CLASS_BYTES, classData, true, STRONG);
118 Class<?> c = lookup.lookupClass();
119 assertTrue(c.getNestHost() == c);
120 assertTrue(c.isHiddenClass());
121 }
122
123 @Test(expectedExceptions = IllegalAccessException.class)
124 public void noPrivateLookupAccess() throws Throwable {
125 Lookup lookup = MethodHandles.lookup().dropLookupMode(Lookup.PRIVATE);
126 lookup.defineHiddenClassWithClassData(T2_CLASS_BYTES, classData, false, NESTMATE);
127 }
128
129 @Test
130 public void teleportToNestmate() throws Throwable {
131 Lookup lookup = MethodHandles.lookup()
132 .defineHiddenClassWithClassData(T_CLASS_BYTES, classData, false, NESTMATE);
133 Class<?> c = lookup.lookupClass();
134 assertTrue(c.getNestHost() == DefineClassWithClassData.class);
135 assertEquals(classData, injectedData(c));
136 assertTrue(c.isHiddenClass());
137
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